Buggy code:
public class IMEI2QRActivity extends Activity implements OnClickListener { private final String TAG = getClass ( ) . getName ( ) ; private static final String CHART_URL = "http:////chart.apis.google.com//chart?cht=qr&chld=L&choe=UTF-8" ; private static final int DOWNLOAD_DIALOG = 0 ; private static final int NETWORK_ERROR_DIALOG = 1 ; private LinearLayout top ; private TextView id ; private TextView user ; private ImageView qr ; private ImageView signature ; private ProgressDialog progress ; private String wifiID ; private String userId ; private JSONObject jsonID ; private Bitmap qrCodeImg ; private Bitmap signatureImg ; private IMEI2QRActivity . URLTask myTask ; @ Override public void onCreate ( Bundle savedInstanceState ) { super . onCreate ( savedInstanceState ) ; Parse . initialize ( this , "aLvdYW4Md0neSVfgTxiqsmRSo5sIPJYHDeVcYO3i" , "CvF1F4yjlyr8X42eE5PXWa0mhMNVKoHhcIwIeSrg" ) ; Parse . setLogLevel ( LOG_LEVEL_VERBOSE ) ; ParseInstallation thisInstall = ParseInstallation . getCurrentInstallation ( ) ; Log . d ( "HANS" , ( "Installation<seq2seq4repair_space>ID<seq2seq4repair_space>is<seq2seq4repair_space>" + ( thisInstall . getInstallationId ( ) ) ) ) ; setContentView ( main ) ; top = ( ( LinearLayout ) ( findViewById ( topLayout ) ) ) ; id = ( ( TextView ) ( findViewById ( R . id . id ) ) ) ; user = ( ( TextView ) ( findViewById ( R . id . user ) ) ) ; qr = ( ( ImageView ) ( findViewById ( qr_code ) ) ) ; signature = ( ( ImageView ) ( findViewById ( signature_image ) ) ) ; qr . setOnClickListener ( this ) ; WifiManager wm = ( ( WifiManager ) ( getSystemService ( WIFI_SERVICE ) ) ) ; wifiID = wm . getConnectionInfo ( ) . getMacAddress ( ) ; try { if ( savedInstanceState != null ) { userId = savedInstanceState . getString ( "userId" ) ; jsonID = new JSONObject ( savedInstanceState . getString ( "devId" ) ) ; qrCodeImg = savedInstanceState . getParcelable ( "qrcode" ) ; signatureImg = savedInstanceState . getParcelable ( "signature" ) ; qr . setImageBitmap ( qrCodeImg ) ; id . setText ( wifiID ) ; if ( ( userId . length ( ) ) > 0 ) { user . setText ( ( "checked<seq2seq4repair_space>out<seq2seq4repair_space>by<seq2seq4repair_space>" + ( userId ) ) ) ; signature . setImageBitmap ( signatureImg ) ; signature . setVisibility ( VISIBLE ) ; } else { <START_BUG> user . setText ( "is<seq2seq4repair_space>not<seq2seq4repair_space>checked<seq2seq4repair_space>out" ) ; <END_BUG> signature . setVisibility ( GONE ) ; } } else { jsonID = new JSONObject ( ) ; boolean isTablet = getResources ( ) . getBoolean ( isTablet ) ; jsonID . put ( "id" , wifiID ) ; jsonID . put ( "model" , ( ( ( Build . MODEL ) + "<seq2seq4repair_space>" ) + ( Build . MANUFACTURER ) ) ) ; jsonID . put ( "os" , ( "Android<seq2seq4repair_space>" + ( VERSION . RELEASE ) ) ) ; jsonID . put ( "form_factor" , ( isTablet ? "Tablet" : "Phone" ) ) ; qrCodeImg = null ; } } catch ( JSONException e ) { e . printStackTrace ( ) ; } id . setText ( wifiID ) ; thisInstall . put ( "dev_id" , wifiID ) ; thisInstall . saveInBackground ( ) . continueWith ( new bolts . Continuation < Void , Object > ( ) { @ Override public Object then ( Task < Void > task ) throws Exception { if ( task . isFaulted ( ) ) { Log . d ( "HANS" , ( ( "Can't<seq2seq4repair_space>update<seq2seq4repair_space>installation<seq2seq4repair_space>" + "data<seq2seq4repair_space>" ) + ( task . getError ( ) . getMessage ( ) ) ) ) ; } return null ; } } , UI_THREAD_EXECUTOR ) ; } @ Override protected void onSaveInstanceState ( Bundle outState ) { } @ Override protected void onResume ( ) { } @ Override protected void onPause ( ) { } @ Override protected Dialog onCreateDialog ( int id ) { } private class URLTask extends AsyncTask < Void , Void , Object > { @ Override protected Object doInBackground ( Void ... params ) { } @ Override protected void onPostExecute ( Object result ) { } @ Override protected void onPreExecute ( ) { } @ Override protected void onProgressUpdate ( Void ... values ) { } } @ Override public void onClick ( View v ) { } private boolean isNetworkAvailable ( ) { } private BroadcastReceiver localReceiver = new BroadcastReceiver ( ) { @ Override public void onReceive ( Context context , Intent intent ) { } } ; }

Fix:
user . setText ( "is<seq2seq4repair_space>available" ) ;